PrimeNumber.Java

[YashMirge]

Have you read the Contributing Guidelines on Pull Requests?

(Write your answer here.)

Description

(Write your answer here.)

Checklist

• [x] I've read the contribution guidelines.
• [x] I've checked the issue list before deciding what to submit.
• [x] I've added only source code file.

Related Issues or Pull Requests

(Write your answer here.)

---

(To fasten your PR review process mention me (@ananddasani))